Check WMI output formating

[alexoalexo]

Hello all,
I'm using WMI to get some data. The issue I have is that the output doesn't contain labels for the selected items.

For example:
check_wmi query="select DeviceID, FreeSpace FROM Win32_LogicalDisk" perf-config="*(unit:B)" warn="FreeSpace > 1000000"

C:, 27199328256 |'C: FreeSpace'=27199328256B;1000000

I want to format the output (not the perf data).
For example I want the output in this case to be something like:
C:_FreeSpace 27199328256 |'C: FreeSpace'=27199328256B;1000000 - just like in the performance data to have a label next to my values.
This way my status in Nagios will be more meaningful
I guess I need to play with detail-syntax, but not sure how to use it.

Thanks for your help